Stocks to Watch: DELL, PRU, CASY & More

Check out which companies are making headlines after the bell Tuesday:

Dell - The computer hardware giant announced it will initiate a quarterly dividendof 8 cents a share beginning in the third quarter. Shares rallied in extended-hours trading. (Click here for after-hours quote.)

JPMorgan Chase - CEO Jamie Dimon is expected to tell the Senate Banking Committee on Wednesday that the bank's recent trading losses are an isolated incidentand the company is expected to be "solidly profitable" in the second quarter. The stock edged higher in extended-hours trading after rallying almost 3 percent in the regular session. (Click here for after-hours quotes.)

Casey's General - The retail chain posted earnings of 60 cents a share, missing expectations for 67 cents a share. Meanwhile, the company increased its quarterly dividend by 10 percent to 16 cents from 15 cents. Shares tumbled in extended-hours trading. (Click here for after-hours quote.)

US Airways - The airline company is seeking to file paperwork as early as next month for a proposed merger with bankrupt AMR, according to reports. Shares edged higher in extended-hours trading. (Click here for after-hours quote.)